sulogin(1M)                                                        sulogin(1M)


NAME
     sulogin - access single-user mode

SYNOPSIS
     sulogin

DESCRIPTION
     sulogin is automatically invoked by init when the system is first
     started.  It prompts the user to type the root password to enter system
     maintenance mode (single-user mode) or to type EOF (typically CTRL-d) for
     normal startup (multi-user mode).  sulogin should never be directly
     invoked by the user.

NOTES
     After verifying the root password, sulogin invokes su to set up the login
     session.  If PAM authentification is enabled, the configuration file
     /etc/pam.d/su will determine what, if any, additional authentification is
     performed by su.  This could result in the user being prompted a second
     time for the root password.

FILES
     /sbin/sulogin

SEE ALSO
     init(1M), su(1M).


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